Finding the Fourth Proportional to 353.25, 487.53 and 198
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Solution
The fourth proportional to 353.25, 487.53 and 198 is: 273.27
Step by Step Solution
- Step 1: Write the proportion equation
353.25 : 487.53 = 198 : x - Step 2: Convert to fraction form
353.25/487.53 = 198/x - Step 3: Cross multiply
353.25x = 487.53 × 198 - Step 4: Simplify right side
353.25x = 96,530.94 - Step 5: Solve for x
x = 96,530.94/353.25 - Step 6: Final answer
x = 273.27
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.